So why are knives illegal in the UK?

US Somali here, wondering why you can't carry pocket knives to cut some food/fruit or defend yourself from a loose dog/pitbull.
You guys have no freedoms or what? You niggas living like serfs and peasants, i dont even know the laws there but I bet their legal in those all white areas outside of London. White people be trying so damn hard to disarm minorities, if you read up on European history during the Roman Empire / Greek Empire era's everyone was allowed to own a sword but slaves or defeated people.
as u r aware that otf knives are illegal in western hemisphere, the illegal length is kinda debatable, but do u think that if anybody ever gets involved in stabbing with any type of item that is hitable that they would be happy with the results? @Bosco